Flight Haneda Airport departs from Tokyo Haneda Airport at 09:40 and arrives at Hong Kong Hong Kong International Airport at 13:40.
The flighttime is about 5h 00m. The distance travelled ("as the bird flies"): 2992 Km. So the average speed is roughly 598 Km.
There is an 1 hour time difference between Tokyo and Hong Kong
The best day to arrive at Tokyo is Sunday and it would be best to avoid Monday, as prices are on average 69.06% higher than on Sunday. (Average prices, based on 1230595 datapoints.)
We have a lot more statistics for flights JL 29 and between Tokyo and Hong Kong.